Bred by Francis Kernan in Kentucky on Spendthrift Farm, the yearling Landaluce was chosen at auction for buyers Lloyd French and Barry Beal by Hall of Fame trainer D. Wayne Lukas. Her price tag was $650,000. Lukas said he noticed her "tremendous heart girth". Beal and French named their new filly after a guide on a Spanish ranch they had once visited, Francisco Landaluce. Racing only at two, during that year Landaluce started five times and won each race. Her combined winning margin was 46½ lengths, 21 of those lengths coming in the Grade IIHollywood Lassie Stakes. She debuted at Hollywood Park Racetrack on July 3, 1982, winning a six-furlong Maiden Special Weight in a time of 1:08 1/5. Her jockey was Hall of Famer Laffit Pincay, Jr.. Riding her once, Pincay chose to continue riding her. He said, "Normally, I am not a superstitious man, but I walk around these days hoping nothing happens to her. When I see Wayne Lukas walking towards me, my instinct is to turn away. I am afraid he is going to tell me something has gone wrong. I never want to hear that she has turned a hair." On July 10, Landaluce won the six-furlong Hollywood Lassie by 21 lengths in 1:08 flat. Her margin of victory remains the largest ever run in any race by a two-year-old at Hollywood Park. Her time is said to be the fastest clocking ever for a juvenile filly in a one-turn, six-furlong race. Lukas was quoted as saying, "You search and you look, and then all of a sudden, it comes, that star, and you know you have been blessed with something special." At Del Mar Racetrack on September 5, Landaluce won the one-mile Del Mar Debutante Stakes. She then went to Santa Anita Park for the October 11 running of the seven-furlong Grade II Anoakia Stakes, which she won by eight lengths. Her last race, and her last victory, was the one-and- one-sixteenth-mile Grade I Oak Leaf Stakes at Santa Anita. Lukas was now pointing her towards the Grade I Hollywood Starlet Stakes, scheduled to run on November 28. But on November 22, Landaluce became ill. Lukas, knowing it was a virus, was still hopeful she would make the Starlet. However, Landaluce had colitis X, a disease that nearly killed her sire. Landaluce, though, steadily weakened from the blood clots formed by a severe bacterial invasion and died on November 28, 1982. Landaluce was posthumously awarded the American Champion Two-Year-Old Filly for 1982. The Hollywood Lassie Stakes was renamed the Landaluce Stakes in her honor, and she was buried in the infield at Hollywood Park. After the closure of Hollywood Park in 2014, her remains were moved to Spendthrift Farm in Kentucky.
